On the local variation of the Hubble constant

Abstract

We have carefully studied how local measurements of the Hubble constant, $H_0$, can be influenced by a variety of different parameters related to survey geometry, depth, and size, as well as observer position in space. Our study is based on N-body simulations of structure in the standard $\Lambda$CDM model and our conclusion is that the expected variance in measurements of $H_0$ is far too small to explain the current discrepancy between the low value of $H_0$ inferred from measurements of the cosmic microwave background (CMB) by the Planck collaboration and the value measured directly in the local universe by use of Type Ia supernovae. This conclusion is very robust and does not change with different assumptions about survey geometry and effective sky coverage or observer position in space.

arXiv comment15 pages, 9 figures

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• The Local Value of $H_0$ in an Inhomogeneous Universe
• How does an incomplete sky coverage affect the Hubble Constant variance?
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• Observational constraints in Delta Gravity: CMB and supernovas
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• An SU(2) gauge principle for the Cosmic Microwave Background: Perspectives on the Dark Sector of the Cosmological Model
• An Accelerating Universe without Lambda: Delta~Gravity Using Monte Carlo
• Dispersion in the Hubble-Lemaître constant measurements from gravitational clustering
• A nontrivial footprint of standard cosmology in the future observations of low-frequency gravitational waves
• Reference frame dependence of the local measurement of the Hubble constant
• Sample Variance for Supernovae Distance Measurements and the Hubble tension